Finding the Fourth Proportional to 418,459.36, 577,430.76 and 248,660.68
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Solution
The fourth proportional to 418,459.36, 577,430.76 and 248,660.68 is: 343,126.09
Step by Step Solution
- Step 1: Write the proportion equation
418,459.36 : 577,430.76 = 248,660.68 : x - Step 2: Convert to fraction form
418,459.36/577,430.76 = 248,660.68/x - Step 3: Cross multiply
418,459.36x = 577,430.76 × 248,660.68 - Step 4: Simplify right side
418,459.36x = 143,584,325,434.52 - Step 5: Solve for x
x = 143,584,325,434.52/418,459.36 - Step 6: Final answer
x = 343,126.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.